DVI output using Mini DisplayPort to DVI Adapter (optional).Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on an external display, both at millions of colors.Intel HD Graphics 3000 with 384MB of DDR3 SDRAM shared with main memory 5.13.3-inch (diagonal) LED-backlit glossy widescreen display with support for millions of colors.L pAm is the mean A-weighted sound pressure level measured at the operator position (rounded to the nearest dB).L WAd is the statistical upper-limit A-weighted sound power level (rounded to the nearest 0.1 B).Meets ENERGY STAR Version 5.2 requirementsĭECLARED NOISE EMISSIONS in accordance with ISO 9296.Highly recyclable aluminum and glass enclosure.MacBook Pro is designed with the following features to reduce its environmental impact: Support for Apple iPhone headset with microphone.Combined headphone/line in (supports digital output).Bluetooth 2.1 + EDR (Enhanced Data Rate) wireless technology.Wi-Fi wireless networking 2 (based on IEEE 802.11n specification) IEEE 802.11a/b/g compatible.

2011 macbook pro video card replacement